cxgb4: set up filter action after rewrites

[ Upstream commit 937d8420588421eaa5c7aa5c79b26b42abb288ef ]

The current code sets up the filter action field before
rewrites are set up. When the action 'switch' is used
with rewrites, this may result in initial few packets
that get switched out don't have rewrites applied
on them.

So, make sure filter action is set up along with rewrites
or only after everything else is set up for rewrites.

Fixes: 12b276fbf6e0 ("cxgb4: add support to create hash filters")
Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Link: https://lore.kernel.org/r/20201023115852.18262-1-rajur@chelsio.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
index bb3ee55cb72cbe26953411968f020d45c5b244f5..a62c96001761baf5b13f2da80fe79a8c498ca490 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
@@ -145,13 +145,13 @@ static int configure_filter_smac(struct adapter *adap, struct filter_entry *f)
        int err;
 
        /* do a set-tcb for smac-sel and CWR bit.. */
-       err = set_tcb_tflag(adap, f, f->tid, TF_CCTRL_CWR_S, 1, 1);
-       if (err)
-               goto smac_err;
-
        err = set_tcb_field(adap, f, f->tid, TCB_SMAC_SEL_W,
                            TCB_SMAC_SEL_V(TCB_SMAC_SEL_M),
                            TCB_SMAC_SEL_V(f->smt->idx), 1);
+       if (err)
+               goto smac_err;
+
+       err = set_tcb_tflag(adap, f, f->tid, TF_CCTRL_CWR_S, 1, 1);
        if (!err)
                return 0;
 
@@ -608,6 +608,7 @@ int set_filter_wr(struct adapter *adapter, int fidx)
                      FW_FILTER_WR_DIRSTEERHASH_V(f->fs.dirsteerhash) |
                      FW_FILTER_WR_LPBK_V(f->fs.action == FILTER_SWITCH) |
                      FW_FILTER_WR_DMAC_V(f->fs.newdmac) |
+                     FW_FILTER_WR_SMAC_V(f->fs.newsmac) |
                      FW_FILTER_WR_INSVLAN_V(f->fs.newvlan == VLAN_INSERT ||
                                             f->fs.newvlan == VLAN_REWRITE) |
                      FW_FILTER_WR_RMVLAN_V(f->fs.newvlan == VLAN_REMOVE ||
@@ -625,7 +626,7 @@ int set_filter_wr(struct adapter *adapter, int fidx)
                 FW_FILTER_WR_OVLAN_VLD_V(f->fs.val.ovlan_vld) |
                 FW_FILTER_WR_IVLAN_VLDM_V(f->fs.mask.ivlan_vld) |
                 FW_FILTER_WR_OVLAN_VLDM_V(f->fs.mask.ovlan_vld));
-       fwr->smac_sel = 0;
+       fwr->smac_sel = f->smt->idx;
        fwr->rx_chan_rx_rpl_iq =
                htons(FW_FILTER_WR_RX_CHAN_V(0) |
                      FW_FILTER_WR_RX_RPL_IQ_V(adapter->sge.fw_evtq.abs_id));
@@ -1019,11 +1020,8 @@ static void mk_act_open_req6(struct filter_entry *f, struct sk_buff *skb,
                            TX_QUEUE_V(f->fs.nat_mode) |
                            T5_OPT_2_VALID_F |
                            RX_CHANNEL_F |
-                           CONG_CNTRL_V((f->fs.action == FILTER_DROP) |
-                                        (f->fs.dirsteer << 1)) |
                            PACE_V((f->fs.maskhash) |
-                                  ((f->fs.dirsteerhash) << 1)) |
-                           CCTRL_ECN_V(f->fs.action == FILTER_SWITCH));
+                                  ((f->fs.dirsteerhash) << 1)));
 }
 
 static void mk_act_open_req(struct filter_entry *f, struct sk_buff *skb,
@@ -1059,11 +1057,8 @@ static void mk_act_open_req(struct filter_entry *f, struct sk_buff *skb,
                            TX_QUEUE_V(f->fs.nat_mode) |
                            T5_OPT_2_VALID_F |
                            RX_CHANNEL_F |
-                           CONG_CNTRL_V((f->fs.action == FILTER_DROP) |
-                                        (f->fs.dirsteer << 1)) |
                            PACE_V((f->fs.maskhash) |
-                                  ((f->fs.dirsteerhash) << 1)) |
-                           CCTRL_ECN_V(f->fs.action == FILTER_SWITCH));
+                                  ((f->fs.dirsteerhash) << 1)));
 }
 
 static int cxgb4_set_hash_filter(struct net_device *dev,
@@ -1722,6 +1717,20 @@ void hash_filter_rpl(struct adapter *adap, const struct cpl_act_open_rpl *rpl)
                        }
                        return;
                }
+               switch (f->fs.action) {
+               case FILTER_PASS:
+                       if (f->fs.dirsteer)
+                               set_tcb_tflag(adap, f, tid,
+                                             TF_DIRECT_STEER_S, 1, 1);
+                       break;
+               case FILTER_DROP:
+                       set_tcb_tflag(adap, f, tid, TF_DROP_S, 1, 1);
+                       break;
+               case FILTER_SWITCH:
+                       set_tcb_tflag(adap, f, tid, TF_LPBK_S, 1, 1);
+                       break;
+               }
+
                break;
 
        default:
@@ -1781,22 +1790,11 @@ void filter_rpl(struct adapter *adap, const struct cpl_set_tcb_rpl *rpl)
                        if (ctx)
                                ctx->result = 0;
                } else if (ret == FW_FILTER_WR_FLT_ADDED) {
-                       int err = 0;
-
-                       if (f->fs.newsmac)
-                               err = configure_filter_smac(adap, f);
-
-                       if (!err) {
-                               f->pending = 0;  /* async setup completed */
-                               f->valid = 1;
-                               if (ctx) {
-                                       ctx->result = 0;
-                                       ctx->tid = idx;
-                               }
-                       } else {
-                               clear_filter(adap, f);
-                               if (ctx)
-                                       ctx->result = err;
+                       f->pending = 0;  /* async setup completed */
+                       f->valid = 1;
+                       if (ctx) {
+                               ctx->result = 0;
+                               ctx->tid = idx;
                        }
                } else {
                        /* Something went wrong.  Issue a warning about the

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h b/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h
index 3297ce025e8b180a9d3a295c4e071db1efe61997..6ddc2baa7481326b40dbf9d7a6e07350b279792f 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h
@@ -42,6 +42,10 @@
 
 #define TCB_T_FLAGS_W          1
 
+#define TF_DROP_S              22
+#define TF_DIRECT_STEER_S      23
+#define TF_LPBK_S              59
+
 #define TF_CCTRL_ECE_S         60
 #define TF_CCTRL_CWR_S         61
 #define TF_CCTRL_RFR_S         62